Please PM me any updates / broken links so I can keep this list current.

Copied from www.nga.mil:Pilot Charts depict averages in prevailing winds and currents, air and sea temperatures, wave heights, ice limits, visibility, barometric pressure, and weather conditions at different times of the year. The information used to compile these averages was obtained from oceanographic and meteorologic observations over many decades during the late 18th and 19th centuries.

The Atlas of Pilot Charts set is comprised of five volumes, each covering a specific geographic region. Each volume is an atlas of twelve pilot charts, each depicting the observed conditions for a particular month of any given year.

The charts are intended to aid the navigator in selecting the fastest and safest routes with regards to the expected weather and ocean conditions. The charts are not intended to be used for navigation.

The Atlas of Pilot Charts of the South Atlantic Ocean and the North Pacific Ocean(NGA Pubs 105 and 108, respectively) are not yet available for download, as they are still awaiting digital conversion.

Pub. 105 - Atlas of Pilot Charts South Atlantic Ocean
Not yet available for download, as they are still awaiting digital conversion